Automatic transfer test line

Abstract

The present invention discloses an automatic transfer test line, including a conveyor line, both sides of which are formed with test stations; the conveyor line includes a conveyor frame, a first conveyor mechanism and a second conveyor mechanism, both of which are installed on the conveyor frame, and the first conveyor mechanism and the second conveyor mechanism are spaced apart in the Z-axis direction; a transfer device, the transfer device is installed on the conveying end surface of the first conveyor mechanism, and a transfer plate for transferring workpieces is provided on the transfer device; a lifting device, the starting end and the end of the conveyor line are both connected with the lifting device, and the lifting device is used to receive the transfer plate and drive the transfer plate to move along the Z-axis direction. The automatic transfer test line of the present invention can automatically complete workpiece transmission and reflow.

Description

Technical Field

[0001] The present invention relates to the technical field of production equipment, and in particular to an automatic transfer test line. Background Art

[0002] Currently, in industrial production, workpieces generally need to be transferred from the production line to processing equipment and testing equipment on the production line, and then transferred after the corresponding operations. The existing RGV equipped with a multi-axis manipulator mode to achieve material handling and loading and unloading of equipment is relatively costly. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, an object of the present invention is to provide an automatic transfer test line that can automatically complete workpiece transfer and reflow.

[0004] The purpose of the present invention is achieved by the following technical solutions:

[0005] An automatic transfer test line, comprising:

[0006] A conveyor line, with test stations formed on both sides of the conveyor line; the conveyor line includes a conveyor frame, a first conveyor mechanism, and a second conveyor mechanism, the first conveyor mechanism and the second conveyor mechanism are both mounted on the conveyor frame, and the first conveyor mechanism and the second conveyor mechanism are spaced apart in the Z-axis direction;

[0007] A transfer device, the transfer device being mounted on the conveying end surface of the first conveying mechanism, and the transfer device being provided with a transfer plate for transferring the workpiece;

[0008] The lifting device is connected to the starting end and the end of the conveying line. The lifting device is used to receive the transfer plate and drive the transfer plate to move along the Z-axis direction.

[0009] Furthermore, the first conveying mechanism includes a rack, a gear and a first motor, the gear and the first motor are both installed at the bottom end of the transfer device, and the rotating shaft of the first motor is synchronously connected to the gear; the rack is installed at the top of the conveying frame, and the gear is engaged with the rack.

[0010] Furthermore, the second conveying mechanism includes a second motor, a conveying chain and two sprockets, and the two sprockets are pivotally connected to the two ends of the conveying frame; the conveying chain is synchronously wound around the two sprockets and meshes with the sprockets; the rotating shaft of the second motor is synchronously connected to the sprockets.

[0011] Furthermore, the transfer device includes a body, a turntable, a first transfer assembly, a second transfer assembly, a first drive mechanism, and a second drive mechanism, wherein the turntable is pivotally connected to the body; the first transfer assembly and the second transfer assembly are both mounted on the turntable, and the first transfer assembly and the second transfer assembly are spaced apart in the Z-axis direction; the first transfer assembly and the second transfer assembly are both movable along the Y-axis direction; the first drive mechanism is used to drive the first transfer assembly and the second transfer assembly to move along the Z-axis direction; and the second drive mechanism is used to drive the turntable to rotate around the Z-axis.

[0012] The first transfer assembly includes a third driving mechanism, a transfer plate and two push bars, the two push bars are arranged on the mounting frame and are spaced apart in the X-axis direction; the push bars extend along the Y-axis direction; the push bars can move along the X-axis direction; the transfer plate is installed on the two push bars; the third driving mechanism is used to drive the transfer plate to move along the Y-axis direction.

[0013] Furthermore, a mounting frame is provided on the turntable, the mounting frame is mounted on the turntable, and the first transfer assembly and the second transfer assembly are mounted on the mounting frame;

[0014] The first driving mechanism includes a first cylinder, a driving wheel and a first guiding inclined plane. The first cylinder is fixed on the turntable, and the driving wheel is pivotally connected to the mounting frame. The first guiding inclined plane is fixed on the turntable, and the first guiding inclined plane gradually tilts in the Y-axis direction. The driving wheel and the first guiding inclined plane slide in cooperation. The first cylinder is used to drive the mounting frame to move along the Y-axis direction.

[0015] Furthermore, a drive plate is provided at the power output end of the third drive mechanism, and a linkage mechanism is provided on the drive plate. The linkage mechanism is used for the second cylinder, the first drive block and the second drive block. The first drive block is provided with a second guide slope, and the second drive block is provided with a third guide slope. The second cylinder is used to drive the first drive block to move along the Y-axis direction so that the second guide slope and the third guide slope slide together, and guide the second drive block to move toward or away from the transfer plate along the Z-axis direction; the second drive block is used to connect with the transfer plate after moving toward the transfer plate.

[0016] Furthermore, a connecting hole is provided on the transfer plate; and a connecting column is provided on the second driving block, and the connecting column is used to be inserted into the connecting hole after the second driving block moves upward.

[0017] Furthermore, the lifting device includes a lifting frame, a lifting mechanism and a third conveying mechanism, and the lifting mechanism and the third conveying mechanism are both installed on the lifting frame; the lifting mechanism is used to drive the third conveying mechanism to move along the Z-axis direction; the third conveying mechanism is used to connect with the first conveying mechanism or the second conveying mechanism.

[0018] Furthermore, the lifting mechanism includes a third motor, a synchronous belt and two synchronous wheels, the two synchronous wheels are pivotally connected to the lifting frame and are spaced apart in the Z-axis direction; the synchronous belt is synchronously wound around the two synchronous wheels; the rotating shaft of the third motor is synchronously connected to one of the synchronous wheels; the synchronous belt is fixedly connected to a lifting plate on the transmission section in the Z-axis manner, and the third conveying mechanism is installed on the lifting plate.

[0019] Furthermore, the testing station is provided with a testing device.

[0020] Compared with the prior art, the beneficial effect of the present invention is that its movable loading device can be transported to different test stations under the drive of the first conveying mechanism, and the workpiece on the transfer plate can be transferred to the test station for testing. After the test is completed, the workpiece on the transfer plate can be transferred out. The first conveying mechanism transports the transfer device to the lifting device. After the loading test is completed, the transfer plate can be transferred to the lifting device. After the workpiece on the transfer plate is removed, the lifting device drives the transfer plate to move downward, and the transfer plate can be received by the second conveying mechanism. The second conveying mechanism drives the transfer plate to return to another lifting device. The lifting device drives the transfer plate to move upward again, and the transfer plate can be received by the transfer device on the first conveying mechanism again to complete the next test operation. In this way, the workpiece transmission and reflow can be automatically completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the automatic transfer test line of the present invention;

[0022] Figure 2 It is a schematic diagram of the partial structure of the conveying line of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the lifting device of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the transfer device of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the first transfer assembly of the present invention;

[0026] Figure 6 It is a partial structural schematic diagram of the first transfer assembly of the present invention;

[0027] Figure 7 It is a schematic diagram of the partial structure of the transfer device of the present invention.

[0028] In the figure: 100, transfer device; 11, turntable; 12, gear; 20, first transfer assembly; 21, push bar; 22, transfer plate; 221, connecting hole; 23, third drive mechanism; 24, push wheel; 25, linkage mechanism; 251, second cylinder; 252, first drive block; 253, second drive block; 254, connecting column; 30, second transfer assembly; 41, first cylinder; 42, first guide slope; 43, drive wheel; 50, mounting frame; 200, lifting device; 210, lifting frame; 220, lifting mechanism; 230, mounting plate; 240, third conveying mechanism; 300, conveying line; 310, conveying frame; 320, rack; 330, chain; 340, second motor; 400, testing device. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0030] like Figure 1-7 An automatic transfer test line shown includes a conveyor line 300 , a transfer device 100 , and a lifting device 200 . Test stations are formed on both sides of the conveyor line 300 .

[0031] Specifically, the conveyor line 300 includes a conveyor frame 310, a first conveying mechanism, and a second conveying mechanism. The first conveying mechanism and the second conveying mechanism are both mounted on the conveyor frame 310, with the first conveying mechanism and the second conveying mechanism spaced apart in the Z-axis direction. The transfer device 100 is mounted on the conveying end surface of the first conveying mechanism. The transfer device 100 is provided with a transfer plate 22 for transferring workpieces. In addition, a lifting device 200 is connected to the starting and ending ends of the conveyor line 300. The lifting device 200 is used to receive the transfer plate 22 and drive the transfer plate 22 to move along the Z-axis.

[0032] On the basis of the above structure, using the automatic transfer test line of the present invention, the transfer device 100 can be transported to different test stations under the drive of the first conveying mechanism, and the workpiece on the transfer plate 22 can be transferred to the test station for testing. After the test is completed, the workpiece on the transfer plate 22 can be transferred out. The first conveying mechanism transports the transfer device 100 to the lifting device 200. After the loading test is completed, the transfer plate 22 can be transferred to the lifting device 200. After the workpiece on the transfer plate 22 is removed, the lifting device 200 drives the transfer plate 22 to move downward. The transfer plate 22 can be received by the second conveying mechanism. The second conveying mechanism drives the transfer plate 22 to return to another lifting device 200. The lifting device 200 drives the transfer plate 22 to move upward again. The transfer plate 22 can be received by the transfer device 100 on the first conveying mechanism again to complete the next test operation. In this way, the workpiece transmission and reflow can be automatically completed.

[0033] Furthermore, the first conveying mechanism in this embodiment includes a rack 320, a gear 12, and a first motor. The gear 12 and the first motor are both mounted at the bottom end of the transfer device 100, and the rotating shaft of the first motor is synchronously coupled to the gear 12. The rack 320 is mounted at the top end of the conveyor frame 310 and can extend along the X-axis. The gear 12 meshes with the rack 320. When the transfer device 100 is conveying, the first motor can be activated, and the rotation of the rotating shaft of the first motor can drive the gear 12 to rotate. The rotation of the gear 12 can move along the extension direction of the rack 320, thereby transferring the transfer device 100 to different positions on the conveyor line 300.

[0034] The second conveying mechanism includes a second motor 340, a conveyor chain 330, and two sprockets. The two sprockets are pivotally connected to the ends of the conveyor frame 310. The conveyor chain 330 is synchronously wound around the two sprockets and meshes with them. The shaft of the second motor 340 is synchronously connected to the sprockets. Rotation of the shaft of the second motor 340 drives the sprockets, which in turn drives the conveyor chain 330. Once the transfer plate 22 is placed on the chain 330, it can be conveyed.

[0035] Of course, the first conveying mechanism and the second conveying mechanism can also be implemented by other conveying mechanisms such as belt conveying mechanisms or roller conveying mechanisms in the prior art.

[0036] Furthermore, the transfer device 100 in this embodiment includes a body, a turntable 11, a first transfer assembly 20, a second transfer assembly 30, a first drive mechanism, and a second drive mechanism, with the turntable 11 being pivotally connected to the body. Specifically, the first transfer assembly 20 and the second transfer assembly 30 are both mounted on the turntable 11, and the first transfer assembly 20 and the second transfer assembly 30 are spaced apart in the Z-axis direction. Both the first transfer assembly 20 and the second transfer assembly 30 are movable in the Y-axis direction. The first drive mechanism is used to drive the first transfer assembly 20 and the second transfer assembly 30 to move in the Z-axis direction; the second drive mechanism is used to drive the turntable 11 to rotate about the Z-axis.

[0037] Based on the above structure, taking the above-mentioned first conveying mechanism including the gear 12, the rack 320 and the first motor as an example, the above-mentioned first motor and gear 12 can be installed at the bottom of the body, and the gear 12 at the bottom of the body can run on the rack 320 of the conveyor line 300. When the transfer device 100 moves to correspond to the test station, the first drive mechanism can drive the first transfer assembly 20 and the second transfer assembly 30 to move along the Z-axis direction, so that the first transfer assembly 20 and the second transfer assembly 30 can correspond to the test station of the test machine. The first transfer assembly 20 can be placed without a workpiece, while the second transfer assembly 30 can be placed on the workpiece to be tested. The first transfer assembly 20 on the transfer device 100 moves along the Y-axis direction to the test machine to remove the tested workpiece from the test machine, while the second transfer assembly 30 moves along the Y-axis to the test machine to push the workpiece into the test machine. In this way, the workpieces are alternately picked up and placed to perform workpiece transfer. In addition, the second drive mechanism can drive the turntable 11 to rotate, which can realize multi-directional picking and placing of workpieces.

[0038] Furthermore, a mounting frame 50 can be provided on the turntable 11, and the mounting frame 50 is installed on the turntable 11, and the first transfer assembly 20 and the second transfer assembly 30 are installed on the mounting frame 50. The first driving mechanism is used to drive the mounting frame 50 to move along the Z-axis direction. In this way, the first driving mechanism can drive the mounting frame 50 to move along the Z-axis direction relative to the turntable 11, and can drive the first transfer assembly 20 and the second transfer assembly 30 on the mounting frame 50 to move up and down. The first transfer assembly 20 and the second transfer assembly 30 can move up and down at the same time, and the synchronization is strong.

[0039] More specifically, the first drive mechanism includes a first cylinder 41, a drive wheel 43, and a first guide ramp 42. The first cylinder 41 is fixed to the turntable 11, pivotally connecting the drive wheel 43 to the mounting frame 50. Furthermore, the first guide ramp 42 is fixed to the turntable 11 and gradually tilts in the Y-axis direction. The drive wheel 43 slides in engagement with the first guide ramp 42, and the first cylinder 41 is used to drive the mounting frame 50 along the Y-axis. Thus, when the mounting frame 50 is driven up and down, the first cylinder 41 drives the mounting frame 50 along the Y-axis, and the drive wheel 43 on the mounting frame 50 slides along the first guide ramp 42, guiding the mounting frame 50 up and down.

[0040] Of course, the first drive mechanism can also be implemented by directly using a screw drive mechanism in the prior art. The screw drive mechanism can be directly set in the Z-axis direction to directly drive the mounting frame 50 up and down. However, the first drive mechanism in this embodiment uses a cylinder with an inclined surface set in the Y-axis direction to guide the mounting frame 50 up and down, which can save installation space of the machine body.

[0041] Furthermore, the first transfer assembly 20 includes a third drive mechanism 23, a transfer plate 22, and two push bars 21. The two push bars 21 are mounted on the mounting frame 50, spaced apart in the X-axis direction. The push bars 21 extend along the Y-axis and are movable along the X-axis. The transfer plate 22 is mounted on the two push bars 21; the third drive mechanism 23 is used to drive the transfer plate 22 to move along the Y-axis.

[0042] In this way, during pushing, the transfer plate 22 is supported by the two push bars 21. The workpiece can be placed on the transfer plate 22, and then the third drive mechanism 23 can drive the transfer plate 22 along the Y axis to push the transfer plate 22 into the testing machine for testing. In addition, the push bar 21 can move along the X axis, and the spacing between the two push bars 21 is adjustable. Therefore, the transfer plate 22 can be replaced according to the size of the workpiece to adapt to different workpieces.

[0043] Furthermore, a plurality of pushing wheels 24 may be provided on the first pushing strip 21, and the plurality of pushing wheels 24 are all pivotally connected to the pushing strip 21, and the plurality of pushing wheels 24 are spaced apart along the extension direction of the first pushing strip 21. In this way, when the third driving mechanism 23 drives the transfer plate 22 to move, the transfer plate 22 can roll with the plurality of pushing wheels 24 to reduce friction and facilitate the movement of the transfer plate 22.

[0044] Furthermore, a drive plate is provided at the power output end of the third drive mechanism 23, and a linkage mechanism 25 is provided on the drive plate. The linkage mechanism 25 is used for the second cylinder 251, the first drive block 252, and the second drive block 253. The first drive block 252 is provided with a second guide slope, and the second drive block 253 is provided with a third guide slope. Driven by the second cylinder 251, the first drive block 252 can move along the Y-axis direction so that the second guide slope and the third guide slope slide together, and guide the second drive block 253 to move along the Z-axis toward or away from the transfer plate 22. After moving toward the transfer plate 22, the second drive block 253 is connected to the transfer plate 22.

[0045] Based on this structure, when pushing a workpiece, the workpiece can be placed on the transfer plate 22, and the second cylinder 251 can drive the first drive block 252 to move toward the second drive block 253. The first drive block 252 and the second drive block 253 slide together to guide the second drive block 253 to move toward the transfer plate 22, so that the second drive block 253 can be connected to the transfer plate 22. After that, the third drive mechanism 23 drives the transfer plate 22 to push. After that, after the transfer plate 22 is pushed to the testing machine, the second cylinder 251 can drive the first drive block 252 to reset, and the second drive block 253 to reset, so that the second drive block 253 can be separated from the transfer plate 22, and the transfer plate 22 can remain in the testing machine, completing the pushing of the workpiece.

[0046] After the test is completed, similarly, the second cylinder 251 drives the first drive block 252 to move toward the second drive block 253. The second drive block 253 and the first drive block 252 slide together to guide the second drive block 253 to move close to the transfer plate 22. The second drive block 253 can also be connected to the transfer plate 22 on the test station. The third drive mechanism 23 drives the entire transfer plate 22 to retreat, so that the workpiece tested by the transfer plate 22 on the test station can be moved out.

[0047] Furthermore, the transfer plate 22 is provided with a connection hole 221, and the second drive block 253 is provided with a connection post 254. After the second drive block 253 moves toward the transfer plate 22, the first drive block 252 and the second drive block 253 slide together at an inclined surface, which guides the second drive block 253 upward. The connection post 254 can then move upward and be inserted into the connection hole 221, completing the connection. The assembly of the connection post 254 with the connection hole 221 facilitates subsequent resetting.

[0048] Furthermore, the third driving mechanism 23 includes a third cylinder, which is used to drive the transfer plate 22 to move along the Y-axis direction. The driving structure is simple and stable.

[0049] Of course, the structure of the second transfer assembly 30 in this embodiment can be the same as that of the first transfer assembly 20. The specific pushing process is implemented with reference to the first transfer assembly 20 and will not be described in detail here.

[0050] Furthermore, the lifting device 200 includes a lifting frame 210, a lifting mechanism 220, and a third conveying mechanism 240. The lifting mechanism 220 and the third conveying mechanism 240 are both mounted on the lifting frame 210. The lifting mechanism 220 can drive the third conveying mechanism 240 to move along the Z-axis direction. The third conveying mechanism 240 is used to connect with the first conveying mechanism or the second conveying mechanism. During operation, the lifting mechanism 220 can drive the third conveying mechanism 240 to move upward. After the third conveying mechanism 240 moves upward, it can connect with the first conveying mechanism, and the transfer plate 22 on the transfer device 100 can be received by the third conveying mechanism 240. Thereafter, the lifting mechanism 220 can drive the third conveying mechanism 240 to move downward, so that the third conveying mechanism 240 connects with the second conveying mechanism. The transfer plate 22 can then be received by the second conveying mechanism, completing the conveying and reflux of the transfer plate 22.

[0051] It should be noted that the turntable 11 of the transfer device 100 can drive the mounting frame 50 to rotate toward the third conveying mechanism 240 of the lifting device 200 to facilitate receiving the transfer plate 22. The specific process of transferring the transfer plate 22 to the third conveying mechanism 240 can be referred to the operation process of the first transfer assembly 20.

[0052] Furthermore, the lifting mechanism 220 includes a third motor, a synchronous belt, and two synchronous pulleys. The two synchronous pulleys are pivotally connected to the lifting frame 210 and spaced apart in the Z-axis direction. The synchronous belt is synchronously wound around the two synchronous pulleys. The rotating shaft of the third motor is synchronously connected to one of the synchronous pulleys. The synchronous belt's Z-axis transmission section is fixedly connected to a lifting plate, and the third conveying mechanism 240 is mounted on the lifting plate. Thus, rotation of the third motor drives the synchronous pulleys, which in turn drives the synchronous belt. The synchronous belt's Z-axis transmission section drives the lifting plate up and down, thereby driving the third conveying mechanism 240 mounted on the mounting plate 230 up and down.

[0053] Of course, the lifting mechanism 220 can also be implemented by other linear motion output mechanisms such as a screw transmission mechanism or an electric slide in the prior art.

[0054] Furthermore, the test station in this embodiment may be equipped with a test device 400. This test device 400 may be a conventional FCT test fixture or a flexible circuit board tester. Alternatively, different test devices 400 may be installed on either side of the conveyor line 300 to perform different functional tests. Alternatively, multiple identical test devices 400 may be distributed along the conveyor line 300 to simultaneously test multiple workpieces, improving testing efficiency. The specific configuration is determined based on actual needs.

[0055] Those skilled in the art can make various other corresponding changes and deformations based on the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of the present invention.

Claims

1. An automatic transfer test line, characterized in that: include, A conveyor line, with test stations formed on both sides of the conveyor line; the conveyor line comprises a conveyor frame, a first conveyor mechanism and a second conveyor mechanism, the first conveyor mechanism and the second conveyor mechanism are both installed on the conveyor frame, and the first conveyor mechanism and the second conveyor mechanism are spaced apart in the Z-axis direction; A transfer device, the transfer device is installed on the conveying end surface of the first conveying mechanism, and the transfer device is provided with a transfer plate for transferring the workpiece; A lifting device, the starting end and the end of the conveying line are both connected with the lifting device, the lifting device is used to receive the transfer plate and drive the transfer plate to move along the Z-axis direction; The transfer device comprises a body, a turntable, a first transfer assembly, a second transfer assembly, and a first driving mechanism, wherein the turntable is pivotally connected to the body; the first transfer assembly and the second transfer assembly are both mounted on the turntable, and the first transfer assembly and the second transfer assembly are spaced apart in the Z-axis direction; the first transfer assembly and the second transfer assembly can both move in the Y-axis direction; and the first driving mechanism is used to drive the first transfer assembly and the second transfer assembly to move in the Z-axis direction; The turntable is provided with a mounting frame, the mounting frame is mounted on the turntable, and the first transfer assembly and the second transfer assembly are mounted on the mounting frame; The first driving mechanism includes a first cylinder, a driving wheel and a first guiding inclined plane, the first cylinder is fixedly connected to the turntable, and the driving wheel is pivotally connected to the mounting frame; the first guiding inclined plane is fixedly connected to the turntable, and the first guiding inclined plane gradually tilts in the Y-axis direction; the driving wheel and the first guiding inclined plane are slidably matched; the first cylinder is used to drive the mounting frame to move along the Y-axis direction; The transfer device includes a second driving mechanism, and the second driving mechanism is used to drive the turntable to rotate around the Z axis; The first transfer assembly includes a third driving mechanism, a transfer plate and two push bars, the two push bars are arranged on the mounting frame and are spaced apart in the X-axis direction; the push bars extend along the Y-axis direction; the push bars can move along the X-axis direction; the transfer plate is mounted on the two push bars; the third driving mechanism is used to drive the transfer plate to move along the Y-axis direction; A driving plate is provided at the power output end of the third driving mechanism, and a linkage mechanism is provided on the driving plate. The linkage mechanism includes a second cylinder, a first driving block and a second driving block. The first driving block is provided with a second guiding slope, and the second driving block is provided with a third guiding slope. The second cylinder is used to drive the first driving block to move along the Y-axis direction so that the second guiding slope and the third guiding slope can slide with each other and guide the second driving block to move toward or away from the transferring plate along the Z-axis direction; the second driving block is used to connect with the transferring plate after moving toward the transferring plate.

2. The automatic transfer test line according to claim 1, characterized in that: The first conveying mechanism includes a rack, a gear and a first motor. The gear and the first motor are both installed at the bottom end of the transfer device. The rotating shaft of the first motor is synchronously connected with the gear. The rack is installed at the top end of the conveying frame, and the gear is meshed with the rack.

3. The automatic transfer test line according to claim 1, characterized in that: The second conveying mechanism includes a second motor, a conveying chain and two sprockets, the two sprockets are pivotally connected to the two ends of the conveying frame; the conveying chain is synchronously wound around the two sprockets and meshes with the sprockets; the rotating shaft of the second motor is synchronously connected to the sprockets.

4. The automatic transfer test line according to any one of claims 1 to 3, characterized in that: The transfer plate is provided with a connecting hole; the second driving block is provided with a connecting column, and the connecting column is used to be inserted into the connecting hole after the second driving block moves upward.

5. The automatic transfer test line according to any one of claims 1 to 3, characterized in that: The lifting device includes a lifting frame, a lifting mechanism and a third conveying mechanism, and the lifting mechanism and the third conveying mechanism are both installed on the lifting frame; the lifting mechanism is used to drive the third conveying mechanism to move along the Z-axis direction; the third conveying mechanism is used to connect with the first conveying mechanism or the second conveying mechanism.

6. The automatic transfer test line according to claim 5, characterized in that: The lifting mechanism includes a third motor, a synchronous belt and two synchronous wheels. The two synchronous wheels are pivotally connected to the lifting frame and are spaced apart in the Z-axis direction. The synchronous belt is synchronously wound around the two synchronous wheels. The rotating shaft of the third motor is synchronously connected to one of the synchronous wheels. A lifting plate is fixedly connected to the transmission section of the synchronous belt in the Z-axis direction, and the third conveying mechanism is installed on the lifting plate.

7. The automatic transfer test line according to any one of claims 1 to 3, characterized in that: The testing station is provided with a testing device.

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